From a9aec56afac238e4ed3980bd10b22121b83866dd Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 16 Feb 2011 12:13:06 +0100 Subject: x86-64, NUMA: Wrap acpi_numa_init() so that failure can be indicated by return value Because of the way ACPI tables are parsed, the generic acpi_numa_init() couldn't return failure when error was detected by arch hooks. Instead, the failure state was recorded and later arch dependent init hook - acpi_scan_nodes() - would fail. Wrap acpi_numa_init() with x86_acpi_numa_init() so that failure can be indicated as return value immediately. This is in preparation for further NUMA init cleanups. Signed-off-by: Tejun Heo Cc: Yinghai Lu Cc: Brian Gerst Cc: Cyrill Gorcunov Cc: Shaohui Zheng Cc: David Rientjes Cc: Ingo Molnar Cc: H. Peter Anvin --- arch/x86/include/asm/acpi.h | 1 + arch/x86/kernel/setup.c | 2 +- arch/x86/mm/srat_64.c | 10 ++++++++++ 3 files changed, 12 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index 4e5dff9e0b39..06fb7865eff2 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -187,6 +187,7 @@ struct bootnode; extern int acpi_numa; extern void acpi_get_nodes(struct bootnode *physnodes, unsigned long start, unsigned long end); +extern int x86_acpi_numa_init(void); extern int acpi_scan_nodes(void); #define NR_NODE_MEMBLKS (MAX_NUMNODES*2) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 96810a3c6003..c9a139c3056b 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -995,7 +995,7 @@ void __init setup_arch(char **cmdline_p) /* * Parse SRAT to discover nodes. */ - acpi = !acpi_numa_init(); + acpi = !x86_acpi_numa_init(); #endif #ifdef CONFIG_AMD_NUMA diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c index 4f9dbf066ca4..56b92635d87c 100644 --- a/arch/x86/mm/srat_64.c +++ b/arch/x86/mm/srat_64.c @@ -358,6 +358,16 @@ void __init acpi_get_nodes(struct bootnode *physnodes, unsigned long start, } #endif /* CONFIG_NUMA_EMU */ +int __init x86_acpi_numa_init(void) +{ + int ret; + + ret = acpi_numa_init(); + if (ret < 0) + return ret; + return srat_disabled() ? -EINVAL : 0; +} + /* Use the information discovered above to actually set up the nodes. */ int __init acpi_scan_nodes(void) { -- cgit v1.2.3